Skip to main content
WaterSafeCheck

Lake Mills, WI Tap Water Quality

Water safety reports for all 1 ZIP code in Lake Mills, Wisconsin

Average Score

58/100

Health Violations

1

ZIP Codes

1

High Lead Risk

1

of 1 ZIP codes

C

About Tap Water in Lake Mills, WI

Water quality in Lake Mills, WI is currently rated with a moderate C grade (average score: 58/100 across 1 ZIP code). This rating indicates that while the water provided by Lake Mills Waterworks is treated and regulated, there have been notable compliance issues or contaminant detections recently. Residents should stay informed about the specific challenges affecting their local supply.

Over the past 5 years, Lake Mills has recorded 1 health-based violation. While occasional violations can occur due to seasonal changes or temporary infrastructure issues, Lake Mills Waterworks is legally required to resolve these quickly and notify the public via their annual Consumer Confidence Report. The city's water supply, primarily drawn from ground water, is treated to address these specific contaminants.

Additionally, lead exposure risk remains a critical issue for certain neighborhoods. EPA data indicates that 1 out of 1 ZIP codes in Lake Mills are rated as High or Very High risk for lead. This risk is often driven by aging homes with pre-1986 plumbing containing lead solder or service lines. Families in these areas should test their tap water and consider NSF/ANSI 53 certified filters.

⚠ Lead Risk Alert: Some ZIP codes in Lake Mills are rated High or Very High for lead exposure risk based on EPA data. Search your specific ZIP code for a detailed lead level report.

Health-Based Contaminant Violations in Lake Mills

EPA records indicate that the following contaminants have exceeded Safe Drinking Water Act Maximum Contaminant Levels (MCLs) in Lake Mills water systems over the past 5 years.

Stage 1 DBP Rule

Note: The presence of a past violation does not necessarily mean current water is unsafe. Utilities are required to take corrective action. Review your Consumer Confidence Report for the latest status.

Water Quality by ZIP Code — Lake Mills, WI

Click any ZIP code for the full water quality report

C
53551

Lake Mills, WI

Score: 58/1001 violation

Frequently Asked Questions — Lake Mills Water Quality

Is tap water safe to drink in Lake Mills, WI?+
Tap water in Lake Mills has a grade of C, indicating compliance concerns in recent years. Families with young children or pregnant women should consider using a certified NSF/ANSI 53 water filter for drinking and cooking.
What is the water quality score for Lake Mills?+
The average water quality score across 1 ZIP code in Lake Mills, WI is 58/100. Scores are derived from EPA violation history, lead levels, enforcement actions, and infrastructure risk indicators. Individual ZIP codes may vary — search your specific ZIP above for a personalized report.
Does Lake Mills have lead in its tap water?+
1 out of 1 ZIP codes in Lake Mills are rated High or Very High for lead exposure risk. Older homes built before 1986 may have lead service lines or plumbing fixtures. Residents should run their tap for 30 seconds before use and consider a certified NSF/ANSI 53 lead filter.
How do I get the water quality report for Lake Mills?+
Each ZIP code in Lake Mills has a full water quality report on this site — click any ZIP code below. You can also get the annual Consumer Confidence Report (CCR) from your local water utility. The CCR is required to be published every year by July 1 and contains actual contaminant measurements and violation history.
Where does Lake Mills's tap water come from?+
Tap water in Lake Mills, WI primarily comes from ground water. Groundwater systems pump water from underground aquifers, which is naturally filtered through soil and rock but can still contain naturally occurring contaminants.

Looking for water quality in other cities in Wisconsin?

View All Cities in Wisconsin →